Henry f



(No Model.)

H.P. ALLEN. STEAM BOILER COVERING.

No. 294,951. Patented Mar. 11, 1884.

WITNESSES:

INVENTOR fiflw ATTORNEYS.

UNITED STATES PATENT OFFrcE,

HENRY F. ALLEN, OF NE YORK, N. Y.

STEAM-BOILER COVERING.

SPECIFICATION formingpart of Letters Patent No. 294,951, dated March 11, 1884.

, Application filed November 24, 1883. (No model.)

To all whom it may concern.-

Be it known that I, HENRY F. ALLEN, of the city, county, and State of New York, have invented a new and Improved Steam-Boiler Covering, of whichthe following is a full, clear, and exact description.

The object of my invention is to provide cerdrawings, forming a part of this specification,

in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal View of my improved boiler, parts being broken out and shown in section. Fig. 2 is a sectional plan View of the same.

On the outer surface of the shell A of the steam-boiler a series of horizontal and vertical ribs, B and C, respectively, are secured, which ribs are formed of channel-irons or double T-irons, or are otherwise so shaped that they can be riveted to the shell, and will have flanges at the outer edges. 7 The horizontal and vertical ribs form a series of compartments on the boiler-shell, which compartments are filled with a non-conductor of heat, G, such as asbestus or mineral wool, and these plates D are held in some suitable manner to the outer edges or flanges of the ribs B and C, for the purpose of holding the non-conducting material in place in the compartments. The plates D form a jacket, between which and the shell of the boiler the non-conducting material is held, the said jacket being formed in sections, thus facilitating. securing it on the boiler, and also facilitating the application of the non-conductor to the boiler.

Any part of the jacket and the non-conductor can readily be removed for making repairs, &c., on the boiler without disturbing the rest of the jacket and non-conductor.

I am aware that a removable frame-work has been applied to a boiler, the compartments therein being filled with a non-conducting material, which is held in place by overlapping plates riveted to said frame-work.

Having thus fully described myinvention, I claim as new and desire to secure by Letters Patent- The combination, with a boiler, of vertical O. SEDGWIoK. 

